In any car, the smell of gasoline is typically a bad thing. We would say it's only a problem in combustion-powered cars, but we suppose if you're smelling gasoline in an EV, that's arguably even more concerning. Regardless, it's an unpleasant scent, and it can be a sign that there's fuel where it isn't supposed to be, and could potentially be a fire hazard. So, it's not entirely surprising that the National Highway Traffic Safety Administration (NHTSA) is taking a complaint about such an issue in the 2006 Nissan Frontier seriously. What's weird, though, is that it seems to be just one complaint.Nissan The Complaint May Be Connected To Other Recalls NissanThe oldest of those recalls was issued in 2007, and it covers a fuel filler tube that could prematurely rust due to a defect in a mounting bracket. However, that recall was for Nissan Pathfinders and Infiniti QX4s made from 1997 to 2001, which are notably different models from several years earlier than the petitioner's 2006 Frontier. Presumably, though, the owner thinks that there could be a fuel-filler leak that's similar to the one on those different models, or perhaps a similar part was used.The other two recalls are from 2010, and they do involve the petitioner's generation of Frontier. The earlier of the two was for an issue where the fuel tank itself could deform in such a way to push the fuel level sender. The result would be that the fuel gauge would indicate about a quarter-tank of fuel even though the tank was empty. The other one had to do with a faulty engine computer relay that could lead to poor performance and potential stalling. Neither of these likely covers the fuel smell issue, but could potentially be related to the stalling conditions. This Is The Only Complaint So Far It's worth noting again that this investigation has been opened over just a single incident. The complaint also hasn't resulted in an actual fire or collision, yet, which is fortunate. So at the very least, this investigation is in its very early days. NHTSA will likely be watching for any other similar complaints from other owners. The investigation is only looking at 2006 Frontiers at the moment, and if a defect is found and a recall is deemed necessary, the number of potentially affected vehicles could be as high as 75,300 units. It's also entirely possible that the investigation will conclude that there isn't any defect, and it's just an issue with the single vehicle that, at this point, is 20 years old.